Y9 Math Review

Algebra

100

Solve 3x + 1 = 16

x = 5

200

Solve 2(x - 1) = 3

x = 2,5

300

Expand & Simplify: 2(x + 1) + 3(x + 5)

5x + 17

400

Expand & Simplify 3(x + 4) - 2(x² - x + 1)

-2x² + 5x + 10

500

2 ( (20-2x)/3 ) + 7 = 11

x = 7

Exponents

100

Write 2³ in expanded form and what is the value?

2 x 2 x 2 = 8

200

-9²

-81

300

(-1)²³⁴⁵⁶⁷⁸⁹⁰

1

400

What is (6/5)² as a mixed fraction

1 and 11/25

500

25³ = 5^x

x=6

Fractions

100

3/4 + 1/2

In MIXED FRACTION form

1 and 1/4

200

0,8 + 0,4

in MIXED FRACTION & ENKLASTE FORM

1 and 1/5

300

3,5 + 1,25 in MIXED FRACTION & ENKLASTE FORM

4 and 3/4

400

2,5 + (3/4) + (1200/1200) in MIXED FRACTION & ENKLASTE FORM

4 and 1/4

500

(3/10) x (5/4) x (8/9) in ENKLASTE FORM

1/3

Negative Tal

100

Subtracting a negative number is the same thing as ________________________

Adding a negative number is the same thing as  ________________________

Adding

Subtraction

200

- 7 + 19

12

300

15 + (-9) - (-10)

16

400

-7 - (-2(-4))

-15

500

A integer (whole number) is between -4 and -19. It is twice as far from -4 as it is from -19. What is the integer?

Ett heltal (heltal) är mellan -4 och -19. Det är dubbelt så långt från -4 som det är från -19. Vad är heltalet?

-14

Looking Ahead

100

What is 3,5 x 10²

350

200

What is 4,02 x 10³

4020

300

_______ x 10³ = 43400

What number is missing?

43,4

400

________ x 10⁵ = 200210

What number is missing?

2,0021

500

What does it say at the top of Page 263 in your Z Book.

Vad står det högst upp på sidan 263 i din Z-bok.

Problemlösning